7208 CD/P4ADGA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7208 CD/P4ADGA
Basic Information
System of measurement
Metric
Weight
0.75 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
80 mm
Outside diameter tolerance
-0.004mm to 0
Width
36 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
12442 lbf
Radial static load rating
10800 lbf
Limiting speed
41 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 175.27
/ each
In Stock
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7208 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7208 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in a pre-lubricated, matched set of two, it is engineered to accommodate combined radial and axial loads simultaneously. Its P4A tolerance class and extra light preload (Class A) ensure smooth, quiet operation with minimal heat generation, making it ideal for high-speed spindles and other precision machinery.
7208 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| C | 15° Contact Angle | Optimized for high-speed operation and moderate axial loads. |
| D | Universal Matchable (SU) Design | Two bearings can be arranged in any configuration (back-to-back, face-to-face, or tandem) to meet specific application rigidity and load requirements. |
| P4A | High Precision Tolerance Class | Superior running accuracy for applications requiring minimal vibration and high positional precision. |
| DGA | Extra Light Preload (Class A) | Reduces bearing deflection and improves system rigidity without generating excessive operational heat, ideal for high speeds. |
7208 CD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and universal matchable pairing create a highly rigid bearing system capable of supporting significant combined radial and axial loads.
- Superior High-Speed Performance: The phenolic resin cage offers low weight and excellent acceleration characteristics, contributing to the high limiting speed of 41,000 rpm. The standard 15° contact angle further enhances high-speed capability.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control on bore, outside diameter, and width, ensuring consistent performance and ease of installation in precision assemblies.
- Optimized Material Selection: Components made from chrome steel provide high hardness and durability, while the phenolic cage ensures reliable operation at high rotational speeds.
7208 CD/P4ADGA Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- High-Speed Pumps and Compressors
- Aerospace & Defense Actuators
